Definition1

Flexural strength
- bending str

Impact strength
- ability to resis suddenly applied load and is measures in food-founds

Impact test
- test for toughness

Elongation-to-break
- when stress is given, sample is simply change in shape.
- elongation = [length (L) / original length (Lo) ] x 100%

Young modulus
- ratio of stress / strain

Modulus
- material ability to resist deformation

Toughness
- energy can absorb before deform
- area below the graph of stress/ strain

Strength
- load / cross section area
- unit: N/mm^2 or MPa

Stiffness
- strength / strain
- unit: N/mm^2 or MPa

Strain
- percentage of wood elongation